https://randsinrepose.com/archives/shields-down/ is a classic article (and an incredibly important read for anyone in engineering management) that essentially argues that these two questions are fundamentally equivalent.
I knew that I was looking for something else but I hadn't consciously realized it had gotten that bad.
Am I happy with my job?
Do I like my manager? My team?
Is this project I’m working on fulfilling?
Am I learning?
Am I respected?
Am I growing?
Do I feel fairly compensated?
Is this company/team going anywhere?
Do I believe in the vision?
Do I trust the leaders?not respected, not growing, not strong trust.
learning - some, but I don't like some of what i'm having to learn (not terribly useful outside this project).
fulfilling... occasionally, but more often not.
It's not 'that bad' for me yet, but have been trying to watch out for these signs. I've been in your shoes - where it has gotten 'that bad', and often you don't realize until you're already there.
Good luck to you!
It's easy to use something like compensation or new challenges as a post-hoc rationalization for making a move too, even when the real reason you started looking is perhaps different and requires some introspection. As an example, you might not start looking because you want more money, but it's fairly socially acceptable to say "I left because I was made an offer I can't refuse" as a justification when you do actually leave.